India, July 9 -- Cooking at home became more expensive in June as rising prices of tomatoes, edible oil, LPG cylinders and chicken pushed up the cost of preparing everyday meals, according to Crisil Intelligence's latest Roti Rice Rate (RRR) report.

The average cost of a vegetarian thali increased 5% year-on-year in June, while a non-vegetarian thali became 6% more expensive compared with the same month last year. On a month-on-month basis, the cost rose 4% for a vegetarian thali and 3% for a non-vegetarian thali.

Tomatoes emerged as the single biggest reason behind the increase, while higher prices of cooking oil and LPG added to the burden for households.

The Roti Rice Rate (RRR), compiled by Crisil Intelligence, tracks the monthly c...